BRANEart

BRANEart evaluates per-residue contributions to the structural stability of membrane proteins using statistical potentials tailored to membrane environments.

Key Features:

• Per-Residue Stability Evaluation: Calculates the contribution of each residue to membrane protein stability, distinguishing effects in transmembrane versus extramembrane regions.
• Membrane Propensity Index: Defines a per-residue membrane propensity index by combining specialized statistical potentials to identify residues that favor transmembrane or extramembrane environments.
• Specialized Statistical Potentials: Uses advanced statistical potentials derived from an extended set of recently introduced parameters specifically calibrated for membrane proteins.
• Rational Modification and Analysis: Links per-residue stability scores to enable rational design and analysis of mutations affecting biophysical properties and function.
• Alignment with Experimental Data: Validated by large-scale application to membrane and globular protein datasets, showing agreement with experimental stability-related data.
• Performance: Provides rapid and accurate per-residue stability assessments.

Scientific Applications:

• Protein Engineering: Designing mutations to enhance or reduce membrane protein stability informed by per-residue scores.
• Functional Studies: Investigating residue-level contributions to conformational dynamics and interactions with other biomolecules.
• Structural Biology: Providing insights into residue-level interactions with lipid bilayers and structural adaptations within cellular membranes.

Methodology:

Employs statistical potentials derived from an extended parameter set to compute per-residue stability contributions and a membrane propensity index, and has been applied at large scale to membrane and globular protein datasets for validation.